the header currently fitted I'm pretty sure isn't even for an SRAD, the mid pipe mount is about 2" forward of the the SRAD mount so its just bent over on both sides.. and its a 4 bolt pattern for the D&D can, I have no idea what its off but it doesn't leak and all but the D&D is just too loud and doesn't provide any back pressure at all, looking to give the neighbors a rest and get a little more off idle performance.

my friend had this one on his busa when he wrapped it up, doing a wheelie up a short 25% grade, blind left or go straight onto the freeway, my guess is he was going to go straight, unfortunately when he hit the crest the massive crosswalk paint spun the rear wheel hard when he was completely vertical, he tossed the bike into a concrete pole that had a Seattle times box chained to it, the bike came apart at the neck. MIRACULOUSLY the entire akro system survived only a scuff so minor the owner was wondering how long it had actually been there, that poor pipe suffered 2 totals, he rear ended a car that was doing 60 when he was doing 145, hospitalized but the pipe survived yet again..

it was a good sounding pipe as well, when it was freezing it would blow steam rings about 12 feet! tough as nails too... :-)

my friend had this one on his busa when he wrapped it up, doing a wheelie up a short 25% grade, blind left or go straight onto the freeway, my guess is he was going to go straight, unfortunately when he hit the crest the massive crosswalk paint spun the rear wheel hard when he was completely vertical, he tossed the bike into a concrete pole that had a Seattle times box chained to it, the bike came apart at the neck. MIRACULOUSLY the entire akro system survived only a scuff so minor the owner was wondering how long it had actually been there, that poor pipe suffered 2 totals, he rear ended a car that was doing 60 when he was doing 145, hospitalized but the pipe survived yet again..

it was a good sounding pipe as well, when it was freezing it would blow steam rings about 12 feet! tough as nails too... :-)

What is back pressure? And how do you know that you need a lot of it? Can you measure it? Why does your motor need it, or alot of it.?

what is back pressure? seriously? my verbage off? maybe its just an emissions thing?

and I dunno that I need a lot but I at least want close to what the bike was tuned for, the D&D is basically just a can straight through.. I know when I went from the dual system on my busa to a single Ti-Force system I lost not only MPG but low end torque, maybe it has something to do with unspent fuel I dunno really? but I'm willing to go back to stock form to see if this bike will have better performance off the line.

Suzuki manages it through the ECU and flapper valve on modern GSXRs but how they determined what they need I haven't a clue?

for a 600? is it full race? I need noise damping and back pressure, if its a street pipe how much?

Full race, for a 01-03 600/750. I know of someone who has recently mounted a 01-03 600/750 stock header on a srad, but that doesn't mean this will. Do your research and if you're interested, it's in the y2k section.

Anyone else, calling back pressure? What is it? I hear this term a lot, and it's a bs term, not a bad as a powerband, but striking similar.
Both really exist, but exist as something else, and the effects and dynamics are interesting.
I will give you a hint, it has nothing, absolutely nothing to do with restrictions, "straight through" as you called it, of a pipe, at least not in the terms you said.

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